1 #-
2 # Copyright 2016 Michal Meloun <mmel@FreeBSD.org>
3 # All rights reserved.
4 #
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
7 # are met:
8 # 1. Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 # 2. Redistributions in binary form must reproduce the above copyright
11 # notice, this list of conditions and the following disclaimer in the
12 # documentation and/or other materials provided with the distribution.
13 #
14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 # SUCH DAMAGE.
25 #
26 # $FreeBSD$
27 #
28
29 #include "opt_platform.h"
30
31 #ifdef FDT
32 #include <sys/types.h>
33 #include <dev/ofw/ofw_bus.h>
34 #endif
35
36 INTERFACE hwreset;
37
38 #ifdef FDT
39 HEADER {
40 int hwreset_default_ofw_map(device_t , phandle_t, int, pcell_t *, intptr_t *);
41 }
42
43 #
44 # map fdt property cells to reset id
45 # Returns 0 on success or a standard errno value.
46 #
47 METHOD int map {
48 device_t provider_dev;
49 phandle_t xref;
50 int ncells;
51 pcell_t *cells;
52 intptr_t *id;
53 } DEFAULT hwreset_default_ofw_map;
54 #endif
55
56 #
57 # Assert/deassert given reset.
58 # Returns 0 on success or a standard errno value.
59 #
60 METHOD int assert {
61 device_t provider_dev;
62 intptr_t id;
63 bool value;
64 };
65
66 #
67 # Get actual status of given reset.
68 # Returns 0 on success or a standard errno value.
69 #
70 METHOD int is_asserted {
71 device_t provider_dev;
72 intptr_t id;
73 bool *value;
74 };
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